Mecoprop-P etexyl (Ref: CA3264) |
Last updated: 17/07/2024 |
(Also known as: mecoprop-P 2-ethylhexyl ester; mecoprop-P 2-EHE; G800A) |
SUMMARY |
Data alerts |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate | Ecotoxicity | Human health |
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Warning: Significant data are missing |
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Mecoprop-P etexyl rapidly breaks to mecoprop-P which is a herbicide for post-emergence control of broad-leaved weeds on grass | |
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Cleavers; Chickweed; Clover; Plantains; Ground ivy; Knotweed; Bluegrasses; Bent grass | |
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Lawns; Sports fields; Golf courses; Fairways; Cereals including wheat, barley, oats, triticale | |
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Well established herbicide used across the Europe for broad leaved weed control for many years. | |
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Current | |
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UK regulatory status |
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Approved | ||
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31/01/2027 | ||
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None |
EC Regulation 1107/2009 (repealing 91/414) |
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Approved | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Ireland | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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15/05/2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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No | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes - as mecoprop-P | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Additional information |
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Chemical structure |
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This substance is the herbicidally active D+ isomer of a variant of chiral mecoprop | |
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C₁₈H₂₇ClO₃ | |
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CCCCC(CC)COC(=O)C(C)OC1=C(C=C(C=C1)Cl)C | |
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CCCCC(CC)COC(=O)[C@@H](C)OC1=C(C=C(C=C1)Cl)C | |
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NWTKQOOQEPXMMW-GICMACPYSA-N | |
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InChI=1S/C18H27ClO3/c1-5-7-8-15(6-2)12-21-18(20)14(4)22-17-10-9-16(19)11-13(17)3/h9-11,14-15H,5-8,12H2,1-4H3/t14-,15?/m1/s1 | |
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Yes |
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Common Name | Relationship | Link |
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mecoprop | Parent |
General status |
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Herbicide | |
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Phenoxypropionic herbicide | |
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890 g kg⁻¹ | |
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Synthetic | |
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Selective, systemic, absorbed through leaves and translocated to roots. Synthetic auxin. | |
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861229-15-4 | |
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630-324-3 | |
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475 | |
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- | |
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24843401 | |
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No data found | |
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326.86 | |
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(2E)-2-ethylhexyl (2R)-2-(4-chloro-2-methylphenoxy)propanoate | |
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(RS)-2-ethylhexyl (R)-2-[(4-chloro-o-tolyl)oxy]propionate | |
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2-ethylhexyl (2R)-2-(4-chloro-2-methylphenoxy)propanoate | |
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- | |
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O | |
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4 | |
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Not applicable | |
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Not applicable | |
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Liquid with sweet characteristic odour | |
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Formulations |
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0.001 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Low | ||||||||
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1000000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Octanol5 = Verified data used for regulatory purposes |
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1000000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Methanol5 = Verified data used for regulatory purposes |
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1000000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Ethyl acetate5 = Verified data used for regulatory purposes |
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1000000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Acetone5 = Verified data used for regulatory purposes |
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-25 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Freezing pt4 = Verified data |
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200 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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6.03 X 1003 | Calculated | - | |||||||
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3.78 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
High | ||||||||
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Does not dissociate | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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0.24 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Low volatility. If applied directly to plants, drift is a concern & mitigation is advisable | ||||||||
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79 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Moderately volatile | ||||||||
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Distilled water: 228nm=1040, 280nm=1670, 287nm=1450 0.1M HCl: 228nm=1020, 280nm=1640, 287nm=1420 0.1M NAOH: 230nm=10500, 261nm=1820, 288nm=1610 |
A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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65.4 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 92.6%5 = Verified data used for regulatory purposes |
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Degradation |
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Not readily biodegradable | ||||||||||
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3.04 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Non-persistent | |||||||
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3.04 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Non-persistent | ||||||||
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10.15 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Non-persistent | ||||||||
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0.68 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) (geometric)5 = Verified data used for regulatory purposes |
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EU 2021 dossier: Lab studies DT₅₀ (measured) range 0.35-12.9 days, DT₉₀ (measured) range1.75-42.7 days, Soils=5 | ||||||||||
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7 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 4 = Verified data |
Moderately fast | |||||||
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Stable | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Stable | |||||||
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Stable at all relevant pH values | ||||||||||
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. | ||||||||||
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Soil adsorption and mobility |
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1.54 | A4 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) as mecoprop-P4 = Verified data |
Mobile | |||||||
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59.8 | ||||||||||
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0.85 | ||||||||||
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Data for mecoprop-P: EU 2016 RAR dossier Kf range 0.3-4.5 mL g⁻¹, Kfoc range 12-167 mL g⁻¹, 1/n range 0.66-1.01, Soils=10. Note Mecoprop-P etexyl is expected to have a much higher Koc/Kfoc than the acid. | ||||||||||
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For mecoprop-P adsorption is higher at lower pH |
Fate indices |
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1.07 | Calculated | Low leachability | ||||||||||||||||||||||||||
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2.42 X 10-03 | Calculated | - | |||||||||||||||||||||||||
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Medium | Calculated | - | ||||||||||||||||||||||||||
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Mobile | Calculated | - | ||||||||||||||||||||||||||
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Known soil metabolites |
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Major fraction | - | - |
Known groundwater metabolites |
None
Other known metabolites |
None
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Terrestrial ecotoxicology |
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> 1400 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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> 2250 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Colinus virginianus5 = Verified data used for regulatory purposes |
Low | ||||||||
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> 200 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Apis mellifera5 = Verified data used for regulatory purposes |
Low | ||||||||
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> 200 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Apis mellifera5 = Verified data used for regulatory purposes |
Low | ||||||||
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Aquatic ecotoxicology |
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> 1.54 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Oncorhynchus mykiss5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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> 1400 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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2000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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4.66 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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0.01 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) as mecoprop-P5 = Verified data used for regulatory purposes |
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None allocated | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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0.2 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rabbit SF=100 as mecoprop-P5 = Verified data used for regulatory purposes |
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0.04 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) as mecoprop-P5 = Verified data used for regulatory purposes |
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No unacceptable risks to bystanders identified | |||||||||
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No unacceptable risks to operators or other workers using PPE/PPC identified | ||||||||||
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Excreted mainly via urine - 95% in 24 hrs | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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Health issues |
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Possible kidney & liver toxicant |
Handling issues |
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Not expected to auto-ignite, Not highly flammable Not explosive or oxidising IMDG Transport Hazard Class 9 |
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Health: H302, H317 Environment: H400, H410 |
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Not listed (Not listed) | |||
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UN3077 | |||
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Packaging Group III (minor danger) | |||
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mecoprop-P etexyl | ||
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Record last updated: | 17/07/2024 |
Contact: | aeru@herts.ac.uk |
Please cite as: | Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |